Guide to Recover Deleted/Corrupted DMG File on Mac

How to Recover Deleted DMG Files on Mac

"Hey, I accidentally deleted some DMG files and wish to recover them. I dragged them to the Trash and emptied it. It seems impossible to restore DMG files. How can I retrieve my lost DMG files?"

A Disk Image is a file used by the Mac OS X operating system to store an image of a disk, often with the file extension ".DMG." These images can be optionally compressed and encrypted, and mounted as a volume for direct access to the stored data from the operating system. DMG files are commonly used for distributing software over the Internet, but users of Mac OS X can also create their own disk images.

Data loss is something that happens every day, and DMG files are no exception. Sometimes, you need to recover data from these images. This short article explains how to do that with the help of a Mac data recovery software.

"Mac Data Recovery Wizard Tool"

This Mac Drive Recovery tool thoroughly scans the Mac hard drive to locate and restore DMG files that have been accidentally deleted or lost due to other reasons. It enables you to effortlessly recover deleted, lost, or formatted files. Just three simple steps are enough to retrieve deleted files from Mac Trash. The sooner you use it, the higher the chances of recovery. Other beneficial features of the DMG File Recovery program include:

Here's a step-by-step guide on how to use professional DMG recovery tools to restore deleted DMG files on Mac:

Note: It is recommended that you first create a backup of your Mac by clicking on "Disk Backup" on the left. The software will recover the deleted files from the backup image. This prevents further damage to your disk and data, making it safer and more reliable.

Step 1: Choose a location and scan it.

Launch the Mac Data Recovery Wizard, and select the disk from which you lost data. Then, click “Search Lost Files” to start scanning.

Step 2: Filter and Preview Lost Files

Once the scan is finished, you can use the file format filters in the top-left or top-right corner to locate the deleted files you need.

Step 3: Recover lost data or files

You can double-click a file to preview its content, or select multiple files for batch recovery. Click "Recover" to restore lost data to your local or cloud drive.

How to Repair a Corrupted DMG File

What do you do if a DMG file becomes corrupted? Can they be repaired? Unfortunately, once damage occurs, it can be difficult to recover. However, there are a few things you can try.

Step 1: Backup

Before attempting to repair a damaged disk image, make a copy of it. While you may be able to repair a damaged image, these methods can also further damage it, so be sure to work with a copy.

Step 2: Use the Disk Utility

Disk Utility has some utilities you can try to address this issue. Open the app, and drag the disk image into the list of devices. Select it, and run a verify from the First Aid tab. If it finds any issues, try repairing the image.

If the issue persists, you can try resizing the image. For resizing, you have options to adjust only the partition, only the image, or both the image and the partition, as these choices will cater to different aspects of the image structure.

Step 3: Mount the image

Sometimes the issue is that the disk image mounting utility has trouble with the image's format. Try mounting the image in Safe Mode (hold Shift while starting up). You might also try mounting the image in another operating system. Utilities built to bridge the gap between Linux and Windows and macOS often employ strategies for mounting or converting file systems that may be more successful than what Apple provides.